Revert "Add support for V8 and Firefox stack traces in pkg/stack_trace."

pkg/stack_trace/test/vm_test.dart

-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-/// This file tests stack_trace's ability to parse live stack traces. It's a
-/// dual of dartium_test.dart, since method names can differ somewhat from
-/// platform to platform. No similar file exists for dart2js since the specific
-/// method names there are implementation details.
-
-import 'package:pathos/path.dart' as path;
-import 'package:stack_trace/stack_trace.dart';
-import 'package:unittest/unittest.dart';
-
-String getStackTraceString() {
-  try {
-    throw '';
-  } catch (_, stackTrace) {
-    return stackTrace.toString();
-  }
-}
-
-StackTrace getStackTraceObject() {
-  try {
-    throw '';
-  } catch (_, stackTrace) {
-    return stackTrace;
-  }
-}
-
-Frame getCaller([int level]) {
-  if (level == null) return new Frame.caller();
-  return new Frame.caller(level);
-}
-
-Frame nestedGetCaller(int level) => getCaller(level);
-
-Trace getCurrentTrace([int level]) => new Trace.current(level);
-
-Trace nestedGetCurrentTrace(int level) => getCurrentTrace(level);
-
-void main() {
-  group('Trace', () {
-    test('.parse parses a real stack trace correctly', () {
-      var string = getStackTraceString();
-      var trace = new Trace.parse(string);
-      var builder = new path.Builder(style: path.Style.url);
-      expect(builder.basename(trace.frames.first.uri.path),
-          equals('vm_test.dart'));
-      expect(trace.frames.first.member, equals('getStackTraceString'));
-    });
-
-    test('converts from a native stack trace correctly', () {
-      var trace = new Trace.from(getStackTraceObject());
-      var builder = new path.Builder(style: path.Style.url);
-      expect(builder.basename(trace.frames.first.uri.path),
-          equals('vm_test.dart'));
-      expect(trace.frames.first.member, equals('getStackTraceObject'));
-    });
-
-    group('.current()', () {
-      test('with no argument returns a trace starting at the current frame',
-          () {
-        var trace = new Trace.current();
-        expect(trace.frames.first.member, equals('main.<fn>.<fn>.<fn>'));
-      });
-
-      test('at level 0 returns a trace starting at the current frame', () {
-        var trace = new Trace.current(0);
-        expect(trace.frames.first.member, equals('main.<fn>.<fn>.<fn>'));
-      });
-
-      test('at level 1 returns a trace starting at the parent frame', () {
-        var trace = getCurrentTrace(1);
-        expect(trace.frames.first.member, equals('main.<fn>.<fn>.<fn>'));
-      });
-
-      test('at level 2 returns a trace starting at the grandparent frame', () {
-        var trace = nestedGetCurrentTrace(2);
-        expect(trace.frames.first.member, equals('main.<fn>.<fn>.<fn>'));
-      });
-
-      test('throws an ArgumentError for negative levels', () {
-        expect(() => new Trace.current(-1), throwsArgumentError);
-      });
-    });
-  });
-
-  group('Frame.caller()', () {
-    test('with no argument returns the parent frame', () {
-      expect(getCaller().member, equals('main.<fn>.<fn>'));
-    });
-
-    test('at level 0 returns the current frame', () {
-      expect(getCaller(0).member, equals('getCaller'));
-    });
-
-    test('at level 1 returns the current frame', () {
-      expect(getCaller(1).member, equals('main.<fn>.<fn>'));
-    });
-
-    test('at level 2 returns the grandparent frame', () {
-      expect(nestedGetCaller(2).member, equals('main.<fn>.<fn>'));
-    });
-
-    test('throws an ArgumentError for negative levels', () {
-      expect(() => new Frame.caller(-1), throwsArgumentError);
-    });
-  });
-}